CVE-2026-34424— Smart Slider 3 Pro 3.5.1.35 Supply Chain Attack Remote Access Toolkit
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I. Basic Information for CVE-2026-34424
Vulnerability Information
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Vulnerability Title
Smart Slider 3 Pro 3.5.1.35 Supply Chain Attack Remote Access Toolkit
Source: NVD (National Vulnerability Database)
Vulnerability Description
Smart Slider 3 Pro version 3.5.1.35 for WordPress and Joomla contains a multi-stage remote access toolkit injected through a compromised update system that allows unauthenticated attackers to execute arbitrary code and commands. Attackers can trigger pre-authentication remote shell execution via HTTP headers, establish authenticated backdoors accepting arbitrary PHP code or OS commands, create hidden administrator accounts, exfiltrate credentials and access keys, and maintain persistence through multiple injection points including must-use plugins and core file modifications.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
内嵌的恶意代码
Source: NVD (National Vulnerability Database)
Vulnerability Title
WordPress plugin Smart Slider 3 Pro 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Smart Slider 3 Pro 3.5.1.35版本存在安全漏洞，该漏洞源于受损的更新系统注入了多阶段远程访问工具包，可能导致未经身份验证的攻击者执行任意代码和命令，包括通过HTTP标头触发预身份验证远程she
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Shenlong Deep Dive — AI Deep Analysis
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Nextendweb | Smart Slider 3 Pro for WordPress | 3.5.1.35 | - | |
| Nextendweb | Smart Slider 3 Pro for Joomla | 3.5.1.35 | - |
II. Public POCs for CVE-2026-34424
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same vendor: Nextendweb
- CVE-2026-4065
Smart Slider 3 <= 3.5.1.33 - Missing Authorization to Authen - CVE-2026-3098
Smart Slider 3 <= 3.5.1.33 - Authenticated (Subscriber+) Arb - CVE-2025-13737
Nextend Social Login and Register <= 3.1.21 - Cross-Site Req - CVE-2025-58031
WordPress Nextend Facebook Connect Plugin <= 3.1.19 - Cross - CVE-2025-6348
Smart Slider 3 <= 3.5.1.28 - Authenticated (Administrator+)
Same weakness: CWE-506
- CVE-2026-6443
Essentialplugin Plugins (Various Versions) - Injected Backdo - CVE-2026-33634
Trivy ecosystem supply chain briefly compromised - CVE-2026-31976
xygeni-action v5 tag poisoned with C2 backdoor - CVE-2026-28353
Trivy Vulnerability Scanner: Unauthorized AI Agent Execution - CVE-2024-10938
OVRI Payment 1.7.0 - Malicious .htaccess directive
V. Comments for CVE-2026-34424
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